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Finding the Fourth Proportional to 133,459.70, 183,949.92 and 101,183.63

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Solution

The fourth proportional to 133,459.70, 183,949.92 and 101,183.63 is: 139,463.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,459.70 : 183,949.92 = 101,183.63 : x
  2. Step 2: Convert to fraction form
    133,459.70/183,949.92 = 101,183.63/x
  3. Step 3: Cross multiply
    133,459.70x = 183,949.92 × 101,183.63
  4. Step 4: Simplify right side
    133,459.70x = 18,612,719,724.06
  5. Step 5: Solve for x
    x = 18,612,719,724.06/133,459.70
  6. Step 6: Final answer
    x = 139,463.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.